Title: Effects of Complex Initial Stress State Parameters on Dynamic Shear Modulus of Loess
Abstract: The foundation soil of the buildings and structures is often in complex initial stress states. The dynamic torsional shear triaxial tests are carried out on undisturbed and remodeling loess under different complex initial stress states by using the remolded DTC-199 torsional cyclic load triaxial apparatus, and the effects of each complex initial stress state parameter on dynamic shear modulus of loess are discussed. Results show that, other conditions being the same, the influence of angles of initial principal stress α 0 on dynamic shear modulus G d of loess show a trend of the bigger α 0 is, the smaller G d is. The effect laws of efficient of initial intermediate principal stress b 0 on G d of loess are not obvious. When the dynamic shear strain is larger, the bigger initial deviator stress ratio η 0 is, the smaller G d of loess is. The influence of initial average principal stress p m0 on loess is significant. The bigger p m0 is, the bigger G d of loess is. G d of undisturbed loess is greater than that of remodeling loess under the complex initial stress states.
Publication Year: 2011
Publication Date: 2011-05-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 3
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